Welcome to HB Rasmus I would suggest removing and cleaning the steam boiler water level probe. The likely cause of your problem is a defective steam boiler temperature probe. If you can, please post an image or video of the PID temperatures. It looks like you're direct plumbed based on the front pan...

Yes, the red circled device is the fill probe. I would try that first and see what happens

Step 1 - pull, photograph & clean steam boiler fill probe and take it from there

It's not my process. I received these sanding discs from 'Analogue Coffee'. You can try to contact them here: {link} This thread was originally posted here: "The claim that perfect grinder alignment is insignificant" I have no idea why they split it to its own thread - without even any PM notificati...

Very interesting but those images are of PRE - 2020 Speedster!

Welcome to HB Nikos That's pretty amazing work! +1 for non-scaling water - all the time!

+1 I agree with John

+1 - For Titus!

Split from "The claim that perfect grinder alignment is insignificant" I did a multi-grade grit honing of our Mahlkonig K30 Vario burrs, top & bottom - and it did make a very big difference to us. This was not only in taste - but in grind number setting as well. The grind range was vastly improved! ...